LOW TEMPERATURE SINTERING CONDUCTIVE METAL FILM AND PREPARATION METHOD THEREOF

摘要

The present invention relates to a low temperature sintering conductive metal ink and a preparation method thereof. More specifically, the invention provides a method for preparing a conductive metal film or pattern, which comprises: (step 1) preparing the conductive film or pattern and metal nanocolloids, prepared by printing a conductive metal ink comprising metal nanocolloids, metal salts, and polymers causing a reaction with the metal salts; (step 2) preparing a mixture by mixing the metal salts with polymers; (step 3) preparing a metal ink by mixing metal nanocolloids prepared in step 1 with a metal salt/polymer mixture prepared in step 2; (step 4) printing the metal ink prepared in step 3; and (step 5) drying and heat-treating a printed material of step 4.